468040809 has 4 divisors (see below), whose sum is σ = 624054416. Its totient is φ = 312027204.

The previous prime is 468040801. The next prime is 468040829. The reversal of 468040809 is 908040864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 468040809 - 2³ = 468040801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (468040801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78006799 + ... + 78006804.

It is an arithmetic number, because the mean of its divisors is an integer number (156013604).

Almost surely, 2^468040809 is an apocalyptic number.

It is an amenable number.

468040809 is a deficient number, since it is larger than the sum of its proper divisors (156013607).

468040809 is a wasteful number, since it uses less digits than its factorization.

468040809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156013606.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 468040809 is about 21634.2508305696. The cubic root of 468040809 is about 776.4161738521.

The spelling of 468040809 in words is "four hundred sixty-eight million, forty thousand, eight hundred nine".